20605215

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{367}}^1$

素因数の和:591

約数の個数: 32

約数和(自身を含む): 34974720

約数和(自身を除く): 14369505

約数列:

[1, 3, 5, 15, 19, 57, 95, 197, 285, 367, 591, 985, 1101, 1835, 2955, 3743, 5505, 6973, 11229, 18715, 20919, 34865, 56145, 72299, 104595, 216897, 361495, 1084485, 1373681, 4121043, 6868405, 20605215]

約数ペア:

[(1, 20605215), (3, 6868405), (5, 4121043), (15, 1373681), (19, 1084485), (57, 361495), (95, 216897), (197, 104595), (285, 72299), (367, 56145), (591, 34865), (985, 20919), (1101, 18715), (1835, 11229), (2955, 6973), (3743, 5505)]